`0.4hat(i)+0.8hat(j)+chat(k)` represents a unit vector, when c is :-

0.4 hat(i)+0.8 hat(j) + c hat(k) represents a unit vector when c is :

0.4 hat(i)+0.8 hat(j) + c hat(k) represents a unit vector when c is :

If a unit vector is represented by 0.5 hat(i)-0.8 hat(j)+chat(k) , then the value of 'c' is :-

If a unit vector is represented by 0.5 hat(i)-0.8 hat(j)+chat(k) , then the value of 'c' is :-

If a unit vector is represented by 0.5 hat(i) + 0.8 hat(j) + c hat(k) , then the value of c is

If a unit vector is represented by 0.5 hat(i) + 0.8 hat(j) + c hat(k) , then the value of c is

If vec(A) = 7hat(i) + 2hat(j) - 3hat(k) and vec(B) = hat(i) + hat(j) + 2chat(k) are perpendicular vectors, the value of c is

If hat(i), hat(j) and hat(k) are unit vectors along x,y and z-axis respectively, the angle theta between the vector hat(i) + hat(j) + hat(k)" ""and vector" hat(j) is given by

If hat(i), hat(j) and hat(k) are unit vectors along x,y and z-axis respectively, the angle theta between the vector hat(i) + hat(j) + hat(k)" ""and vector" hat(j) is given by